SamplingRelation

abstract def append(rows: RDD[Row], time: Long = 1): Unit

Append a given RDD or rows into the relation.

abstract def baseRelation: BaseColumnFormatRelation

The underlying column table used to store data.

abstract def baseTable: Option[String]

Base table of this relation.

abstract def insert(data: DataFrame, overwrite: Boolean): Unit

abstract def insertableRelation(sourceSchema: Seq[Attribute]): Option[InsertableRelation]

Return the actual relation to be used for insertion into the relation or None if sourceSchema cannot be inserted.

abstract def isPartitioned: Boolean

If underlying sample table is partitioned

abstract def isReservoirAsRegion: Boolean

True if underlying sample table is using a row table as reservoir store.

abstract def name: String

Name of this relation in the catalog.

abstract def qcs: Array[String]

The QCS columns for the sample.

abstract def samplingOptions: Map[String, Any]

Options set for this sampling relation.

abstract def schema: StructType

abstract def sqlContext: SQLContext

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

def needConversion: Boolean

final def notify(): Unit

final def notifyAll(): Unit

def sizeInBytes: Long

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

def unhandledFilters(filters: Array[Filter]): Array[Filter]

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit